Rotary engine.



No. 806,451. PATENTED DEC. 5, 19.05. 'F. '0. BARR & G. VON BERGEN.

ROTARY ENGINE. APPLICATION FILED APR. 24, 1905.

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ATTORNEY M KW PATENTED DEC. 5, 1905. F. G. BARR &jG. VON BERGEN.

ROTARY ENGINE. union-Ion FILED 122.24, 190a.-

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ATTORNEY I QW/TNESSESL ism in section.

' UNITED STATES FRANCIS CHARLES BARR AND GODFREY VoN BERGEN;PENNSYLVANIA.

PATENT OFFICE.

O OAKDALE,

ROTARY'ENGINE. I

and one in which the parts are easily:sepa-,

rated to repair or inspect the mechanism.

Our invention also is designed to provide a compact, easily-operated,andsimply-arranged throttle mechanism which can also be used to reverse theengine and which does not include a multiplicity of ports.

The invention is illustrated in the accom panying drawings, in which'Figure 1 is a side View of the machine. Fig. 2 is a similar view withone of the end plates removed and with the throttle mechan- Fig. 3 is asection on line 3 3 in Fig. 1. Fig. 4 is a perspective View of the partsof the casing separated to show their construction. Fig. 5 is aperspective of the piston, and Fig. 6 is a detail of one of the gates inthe piston.

The casing is composed of a lower portion 10 and an upper part 11, whichare joined in their center and are secured by suitable bolts. On the endof the bed-plate are the bearings 12, which support the shaft 13, whichis supplied with a pulley 13 to receive a belt to transmit the motion ofthe engine. The standards 12 are provided with oil-chambers 14, and aloose ring 15 runs over the shaft, the lower part of the ring running inthe oil, inthis way keeping the bearing well lubricated even should theoil run low. Suitably secured to the shaft 13 is a piston 16, whichranged gates 20. These gates are placed ra-,

dially and are adapted to be thrown out by the centrifugal actioninduced by the rotation of'the piston'to fit into these steam-chambersSpecification of Letters Patent. Application filed April 24, 1905.Serial No. 257,229,

Patented Dec. 5,1905.

I 18 and 19' and slide intothe piston at the smaller part of the insideof the casings. As shown in Fig.6 these gates 20v have end pieces 21riding in slots 23, and springs or other suitable means 22 tend to pressthe sides of the gate 21 always in engagement with the sides of thechambers 18 and 19.

On one side of the casing 10 is arranged a cylindrical casing 24, havingan end plate 25,

"this end plate acting as a bearing for the shaft 26, which is in turnoperated by a lever 27. On the inside end of the shaft 26 is a disk 28-,the construction of which can be seen more particularly in Fig. 4, ithaving two ports extending entirely through, as 29 and 30, which arearranged to be placed in .regis'ter with the openings 31and 32 in thecasing,

butso arranged that they cannot register at the same time. The disk 28also has a port 35 extending radially on itssurface, but not running allthe way through, this port serving to throw either one of the openings31 or 32 into communication with the port'36, and thus to theexhaust-pipe 37.

The steam enters the engine through the pipe 38 (shown in Fig. 2) intothe chamber formed by the casing 24, and if the throttle 5 has beenthrown to the right the steam would enter through the port 29 into theduct 31 and part of the steam would go through the port 39 intothechamber 19 and act on the gates which happen to be in that chamber torotate the piston, and the rest of the steam would pass out through thechamber 40 and into the acting as a pipe would then enter the opening 42and pass through the duct and out at 43 on the opposed side of theopposite chamber 18 and acting on the gates in that chamber also tendingto throw the piston around. Under these conditions the exhaust from thechamber 19 would pass out through the port 48 and out at 47. 'It wouldthen enter the groove 46 in the end plate 17", enter the casing again at45, to be joined thereby the exhaust from the chamber 18, passing out at44, and they both would be forced out at the port 32 into the port35 andfrom there pass into the exhaust 36. It will also be .seen that if thethrottle is thrown overto the left the'path that has just been describedfor the entrance of the steam would act as the exhaust, the port 35connecting with 36, and the steam would enter through the port 30 into32 and the path previously described for the exhaust would be utilizedas inlet-ports.

It will thus be seen that the machine is equipped and constructed so asto allow an examination and cleaning of the ports and is at the sametime a cheap construction, the machine being taken apart very readily.

Having thus fully described our invention, We claim as new and desire tosecure by Letters Patent- 1. A rotary engine, comprising a casing, acylinder adapted to rotate in the casing, chambers in the casingonopposite sides of the easing and arranged diametrically opposite, endplates on the casing to embrace the ends of the piston, a steam-inlet atone end of the casing, steam-ducts in the casing connecting thesteam-chamber with opposed ends of each of the chambers, ducts in theend plates connecting the opposed ends of opposite chambers, and athrottle arranged to admit live steam alternately to one or the other ofthe sets of steam-ports.

2. A rotary engine, comprising a casing, a piston arranged to rotate insaid casing, chambers arranged on opposite sides of the casing anddiametricallyopposite, radial gates sliding in the piston, end plates onthe casing arranged to embrace the ends of the piston, a steam-chamberarranged on one end of the casing, ducts connecting opposed ends ofopposite chambers to opposite sides of the easing, ducts in the endplates to connect the ducts leading from the opposed end of thechambers, and a throttle in the steam-chamber arranged to alternatelythrow one or the other of the sets of steam-ports in communication withthe steam-chamber.

3. A rotary engine, comprising a casing having diametrically-opposedchambers, one on each side, a piston arranged to rotate in the casing,gates radially arranged to slide in the piston, a steam-chamber on oneend of the casing, a pair of ducts connecting opposed ends of oppositechambers, a rotatable disk arranged in the steam-chamber, means foroperating the disk, ports in the disk adapted to be thrown in registerwith one of the steamports of the casing, and a port in the diskarranged to connect the other set of ports with the exhaust of theengine.

FRANCIS CHARLES BARR. GODFREY VON BERGEN. Witnesses:

G. W. LAND, JOHN BARTHOLOMEW.

